I've done Summit County many times.
Keystone and ABasin are probably the least crowd in my experiences, definitely recommending staying in the county. I typically stay in Breckenridge either in a place on VRBO, or the Mountain Lodge which is right by the Brewery. If you life Beer you can get a jug from the Brewery for a decent price and get it refiled for like $10.
Utah might not be a bad option, if you decide to fly. I in the 5 trips I've been out there I've never not gotten snow, last year we got 70 inches over the week we were there, it was amazing. Also you can stay in Salt Lake City and every mountain is well within driving distance.
Also I booked through Orbitz and Hotwire submitting a bid a couple of weeks ahead of time usually helps out.
Last thing make sure your board bag is all squared and in good condition and for the love of god carry on equipment for 1 day of riding. I always carryon my Boots,Jacket,Pants, Gloves and Googles. Much easier to rent a board and get base layers for a reasonable price, the outerwear.
Last edited by Kublakan; 12-05-2011 at 01:51 AM.